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Current and future molecular diagnostics in colorectal cancer and colorectal adenoma

World Journal of Gastroenterology 2014年第14期20卷 3847-3857页

作者： Andy Hin-Fung Tsang Ka-Ho Cheng apple siu-ping wong Simon siu-Man Ng Brigette Buig-Yue Ma Charles Ming-Lok Chan Nancy Bo-Yin Tsui Lawrence Wing-Chi Chan Benjamin Yat-Ming Yung Sze-Chuen Cesar wong Department of Health Technology and Informatics Faculty of Health and Social SciencesHong Kong Polytechnic University Department of Surgery Prince of Wales Hospital State Key Laboratory in Oncology in South China Sir Y K Pao Centre for CancerDepartment of Clinical OncologyHong Kong Cancer Institute and Prince of Wales HospitalThe Chinese University of Hong Kong

Colorectal cancer(CRC)is one of the most prevalent cancers in developed *** the other hand,CRC is also one of the most curable cancers if it is detected in early stages through regular colonoscopy or *** CRC develops slowly from precancerous lesions,early detection can reduce both the incidence and mortality of the *** occult blood test is a widely used non-invasive screening tool for *** fecal occult blood test is simple and cost-effective in screening CRC,there is room for improvement in terms of the accuracy of the *** dysregulations have been found to play an important role in CRC *** better understanding of the molecular basis of CRC,there is a growing expectation on the development of diagnostic tests based on more sensitive and specific molecular markers and those tests may provide a breakthrough to the limitations of current screening tests for *** this review,the molecular basis of CRC development,the characteristics and applications of different non-invasive molecular biomarkers,as well as the technologies available for the detection were *** review intended to provide a summary on the current and future molecular diagnostics in CRC and its pre-malignant state,colorectal adenoma.

关键词： Colorectal cancer Colorectal adenoma Molecular diagnostics Fecal occult blood test Non-invasive

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Crosstalk between degradation and bioenergetics: how autophagy and endolysosomal processes regulate energy production

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Neural Regeneration Research 2025年第3期20卷 671-681页

作者： Angelid Pabon Jagannatham Naidu Bhupana Ching-On wong Department of Biological Sciences Rutgers UniversityNewarkNJUSA

Cells undergo metabolic reprogramming to adapt to changes in nutrient availability, cellular activity, and transitions in cell states. The balance between glycolysis and mitochondrial respiration is crucial for energy production, and metabolic reprogramming stipulates a shift in such balance to optimize both bioenergetic efficiency and anabolic requirements. Failure in switching bioenergetic dependence can lead to maladaptation and pathogenesis. While cellular degradation is known to recycle precursor molecules for anabolism, its potential role in regulating energy production remains less explored. The bioenergetic switch between glycolysis and mitochondrial respiration involves transcription factors and organelle homeostasis, which are both regulated by the cellular degradation pathways. A growing body of studies has demonstrated that both stem cells and differentiated cells exhibit bioenergetic switch upon perturbations of autophagic activity or endolysosomal processes. Here, we highlighted the current understanding of the interplay between degradation processes, specifically autophagy and endolysosomes, transcription factors, endolysosomal signaling, and mitochondrial homeostasis in shaping cellular bioenergetics. This review aims to summarize the relationship between degradation processes and bioenergetics, providing a foundation for future research to unveil deeper mechanistic insights into bioenergetic regulation.

关键词： autophagy bioenergetics endolysosome energy production glycolysis metabolic reprogramming mitochondria

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Advances in Graphene‑Based Electrode for Triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： Bin Xie Yuanhui Guo Yun Chen Hao Zhang Jiawei Xiao Maoxiang Hou Huilong Liu Li Ma Xin Chen Chingping wong State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-based TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based TENGs.

关键词： Triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor

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Nanoimprint lithography-assisted block copolymer self-assembly for hyperfine fabrication of magnetic patterns based on L10-FePt nanoparticles

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Science China Chemistry 2025年

作者： Jie Zhang Yi Chen Guijun Li Zelin Sun Zhengong Meng Wai-Yeung wong Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy The Hong Kong Polytechnic University The Hong Kong Polytechnic University Shenzhen Research Institute Division of Integrative Systems and Design and Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology School of Flexible Electronics (Future Technology) and Institute of Advanced Materials (IAM) Nanjing Tech University

L10-FePt-type bit-patterned media has provided a promising alternative for ultrahigh-density magnetic recording systems in the current digital era, but rapid fabrication of magnetic patterns with hyperfine bit islands is still challenging, especially with the target for miniaturization and scalable production simultaneously. Herein, Fe,Pt-containing block copolymers were utilized as single-source precursors for solution-processable patterning and subsequent generation of the demanding magnetic FePt dots by in situ pyrolysis. High-throughput nanoimprint lithography was initially employed to fabricate the predefined bit cells precisely,and then the intrinsic self-assembly of phase-separated block copolymers further drove the formation of accurate bit *** from the synergistic effect of top-down lithographic approach and bottom-up self-assembly, the customizable patterns could be achieved for large-scale mass production in targeted areas, but high-density isolated dots could also be accurately aligned along the patterned features after subsequent self-assembly. This reliable strategy would provide a good avenue to precisely construct ultrahigh-density magnetic data storage devices.

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An overview on the chemistry, pharmacology and anticancer properties of tetrandrine and fangchinoline(alkaloids) from Stephania tetrandra roots

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Journal of Integrative Medicine 2021年第4期19卷 311-316页

作者： Eric Wei Chiang Chan siu Kuin wong Hung Tuck Chan Faculty of Applied Sciences UCSI UniversityKuala Lumpur 56000Malaysia School of Foundation Studies Xiamen University MalaysiaSelangor 43900Malaysia Secretariat of the International Society for Mangrove Ecosystems(ISME) Faculty of AgricultureUniversity of the RyukyusOkinawa 903-0129Japan

Tetrandrine(TET) and fangchinoline(FAN) are dominant bisbenzylisoquinoline(BBIQ) alkaloids from the roots of Stephania tetrandra of the family Menispermaceae. BBIQ alkaloids comprise two benzylisoquinoline units linked by oxygen bridges. The molecular structures of TET and FAN are exactly the same, except that TET has a methoxy(-OCH3) group, while FAN has a hydroxyl(-OH) group at C7. In this overview,the current knowledge on the chemistry, pharmacology and anticancer properties of TET and FAN have been updated. The focus is on colon and breast cancer cells, because they are most susceptible to TET and FAN, respectively. Against colon cancer cells, TET inhibits cell proliferation and tumor growth by inducing apoptosis and G1 cell cycle arrest, and suppresses adhesion, migration and invasion of *** breast cancer cells, FAN inhibits cell proliferation by inducing apoptosis, G1-phase cell cycle arrest and inhibits cell migration. The processes involve various molecular mechanisms and signaling pathways. Some insights on the ability of TET and FAN to reverse multi-drug resistance in cancer cells and suggestions for future research are provided.

关键词： Tetrandrine Fangchinoline Alkaloids Pharmacology Anticancer Multi-drug resistance

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Casticin from Vitex species: a short review on its anticancer and anti-inflammatory properties

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Journal of Integrative Medicine 2018年第3期16卷 147-152页

作者： Eric Wei Chiang Chan siu Kuin wong Hung Tuck Chan Faculty of Applied Sciences UCSI University School of Science Monash University Secretariat of International Society for Mangrove Ecosystems Faculty of Agriculture University of the Ryukyus

This short review provides an update of the anticancer and anti-inflammatory properties of casticin from Vitex species. Casticin is a polymethylflavone with three rings, an orthocatechol moiety, a double bond,two hydroxyl groups and four methoxyl groups. Casticin has been isolated from various tissues of plants in the Vitex genus： fruits and leaves of V. trifolia, aerial parts and seeds of V. agnus-castus and leaves of ***. Studies have reported the antiproliferative and apoptotic activities of casticin from Vitex *** compound is effective against many cancer cell lines via different molecular mechanisms. Studies have also affirmed the anti-inflammatory properties of casticin, with several molecular mechanisms identified. Other pharmacological properties include anti-asthmatic, tracheospasmolytic, analgesic, antihyperprolactinemia, immunomodulatory, opioidergic, oestrogenic, anti-angiogenic, antiglioma, lung injury protection, rheumatoid arthritis amelioration and liver fibrosis attenuation activities. Clinical trials and commercial use of the casticin-rich fruit extract of V. agnus-castus among women with premenstrual syndrome were briefly discussed.

关键词： Vitexicarpin Polymethylflavone Apoptosis Molecular mechanisms

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Engineering advanced dynamic biomaterials to optimize adoptive T-cell immunotherapy

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Engineered Regeneration 2021年第1期2卷 70-81页

作者： Wai Ki wong Bohan Yin Anel Rakhmatullina Jingying Zhou siu Hong Dexter wong Department of Bioengineering Imperial College LondonLondon SW72AZUnited Kingdom Department of Biomedical Engineering The Hong Kong Polytechnic UniversityKowloonHong KongChina School of Biomedical Sciences The Chinese University of Hong KongShatinHong KongChina

Adoptive T-cell therapy(ACT)is a promising therapeutic approach based on the concept of potent T-cell mediated immunity against the *** outcome of antigen-specific T-cells responses relies on the interaction between T-cells and antigen-presenting cells,which provides signals for generating different T-cell phenotypes with different roles in tumor ***,such interaction is often not optimal in vivo and results in low therapeutic *** reach the full potential of the T-cell response,current research put effort into developing dynamic biomaterials as artificial antigen-presenting cells to study and regulate the T-cell activity for controlling T-cell *** this perspective,we provide(1)an overview of ACT and general T-cells behaviors,(2)explore the insight on how biomaterials can be used for studying and regulating T-cell behaviors,(3)and discuss conceptual gaps in knowledge for biomaterials-based immunotherapy.

关键词： T-cell mechanobiology Dynamic nanobiomaterials Adoptive T-cell immunotherapy T-Ligand presentation

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Housing price dispersion in the presale market

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Economic and Political Studies 2020年第1期8卷 65-81页

作者： siu Kei wong Ka Shing Cheung Department of Real Estate and Construction University of Hong Kongthe Hong Kong SARChina The Ronald Coase Centre for Property Rights Research University of Hong Kongthe Hong Kong SARChina Department of Property The University of Auckland Business SchoolAucklandNew Zealand

Sale before completion(***)is a common practice that real estate developers use to sell residential *** presale buyers are unable to inspect uncompleted units,developers may take advantage of asymmetric information and release information about quality to the market *** search theory also suggests that incomplete pricing information,especially for new products,will induce a less competitive market that is characterised by dispersed presale *** price dispersion be reduced if developers were required to provide more quality and pricing information?In this study,we argue that this is not necessarily the *** conduct a natural experiment using a new information disclosure ordinance governing first-hand residential sales in the Hong Kong SAR,*** find that the ordinance reduced the price dispersion of presale units with asymmetric information about property quality,but increased their price dispersion when limited pricing information(*** trading volume)was available in the *** a critical test,we further show that the ordinance increased price dispersion even more after the units were *** suggests that the ordinance has indeed made presale pricing more difficult because developers are no longer allowed to use different strategies to test market demand.

关键词： Price dispersion presale housing market pricing information quality information natural experiment

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Potential role of Lycium barbarum polysaccharides in glaucoma management:evidence from preclinical in vivo studies

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Neural Regeneration Research 2023年第12期18卷 2623-2632页

作者： Yamunadevi Lakshmanan Francisca siu Yin wong Kwok-Fai So Henry Ho-Lung Chan Centre for Eye and Vision Research(CEVR) 17W Hong Kong Science ParkHong Kong Special Administrative RegionChina Guangdong-Hongkong-Macao(GHM)Institute of CNS Regeneration Jinan UniversityGuangzhouGuangdong ProvinceChina Department of Ophthalmology LKS Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina Laboratory of Experimental Optometry(Neuroscience) School of OptometryThe Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Research Centre for SHARP Vision(RCSV) The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina University Research Facilities in Behavioral and Systems Neuroscience(UBSN) The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina

In recent years,the pharmacological benefits of herbal extracts have been revisited for their potential neuroprotective effects in *** polysaccharides extracted from the fruits of Lycium barbarum L.,or Lycium barbarum polysaccharides,exert their anti-aging effect through reducing oxidative stress,modulating the immune response,enhancing neuronal responses,and promoting *** therapeutic efficacy of Lycium barbarum polysaccharides in preserving retinal ganglion cells and their functions was demonstrated in a range of experimental models of optic *** include the acute and chronic ocular hypertension models,the partial optic nerve transection model,and the ischemic-reperfusion injuries *** on these findings,Lycium barbarum polysaccharides appear to be a good candidate to be developed as a neuroprotective agent for treating multifactorial *** review aims to present a comprehensive review on the latest preclinical evidence on the pre-and post-treatment benefits of Lycium barbarum polysaccharides in retinal ganglion cell *** possible mechanisms of Lycium barbarum polysaccharides mediating retinal ganglion cell neuroprotection will also be ***,the potential research gaps in the effective translation of Lycium barbarum polysaccharides treatment into clinical glaucoma management will be discussed.

关键词： animal model complementary and alternative medicine glaucoma retinal ganglion cell Lycium barbarum polysaccharide neuroprotection neuro-rescue ocular hypertension post-treatment pre-treatment

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Seropharmacological Study on Osteogenic Effects of Post-Absorption Ingredients of An Osteoprotective Herbal Formula

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Chinese Journal of Integrative Medicine 2017年第1期23卷 25-32页

作者： siu Wing-sum KO Chun-hay wong Hing-lok GAO Si SHUM Wai-ting LAU Clara Bik-san HUNG Lung-kim LEUNG ping-chung Institute of Chinese Medicine Chinese University of Hong KongHong KongChina State Key Laboratory of Phytochemistry and Plant Resources in West China Chinese University of Hong KongHong KongChina Department of Orthopaedics and Traumatology Chinese University of Hong KonqHong KongChina

Objective： To further investigate the in vitro effects of an osteoprotective herbal formula ＂ELP＂（Herba Epimedii, Fructus Ligustri Lucidi and Fructus Psora/eae） using seropharmacological approach. Methods： Rats were fed with ELP or its individual component herbs for 2 days. The serum containing the post-absorbed ingredients of the herbal items were collected for cell culture using UMR106 cell, RAW264.7 cell and mesenchymal stem cell （MSC） isolated from the bone marrow of the rats. The effects of the herbal-containing serum on cell toxicity were detected by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay; bromodeoxyuridine assay was conducted to measure the cell proliferation of UMR106 cell and MSC; cell activity was measured using colorimetric method, and mRNA expression of runt-related transcription factor 2 （Runx2）, alkaline phosphatase （ALP） and osteopontin （OPN） of UMR106 and MSC as well as matrix metalloproteinase 9 （MMP-9）, tartrate-resistant acid phosphatase （TRAP） and cathepsin K of RAW264.7 were analyzed using real-time reverse-transcription polymerase chain reaction. Results： ELP and its component serum exhibited no cytotoxic effects on the cells. The ELP-containing serum increased the proliferation of UMR106 cell and MSC by 25.7% and 14.4%, respectively and the alkaline phosphatase activity of MSC was increased by 42.6%. On the contrary, it inhibited the RAW264.7 cell differentiation by 29.2%. ELP serum upregulated the Runx2 expression of UMR and MSC by 1.18 fold and 1.27 fold, respectively. It also upregulated ALP and OPN expression in MSC by 1.69- and 2.12-fold, respectively. On the other hand, ELP serum down-regulated MMP-9 and cathepsin K expression of RAW264.7 cell by 0.46- and 0.36-fold, respectively. Conclusions： The serum of the animals fed with ELP contains active ingredients which are effective in promoting osteogenesis and inhibiting osteoclastogenesis.

关键词： osteoporosis seropharmacology osteogenesis herbal formula

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